// SPDX-License-Identifier: GPL-2.0-only /* * Driver for MT9V022, MT9V024, MT9V032, and MT9V034 CMOS Image Sensors * * Copyright (C) 2010, Laurent Pinchart <[email protected]> * * Based on the MT9M001 driver, * * Copyright (C) 2008, Guennadi Liakhovetski <[email protected]> */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/log2.h> #include <linux/mod_devicetable.h> #include <linux/mutex.h> #include <linux/of.h> #include <linux/of_graph.h> #include <linux/regmap.h> #include <linux/slab.h> #include <linux/videodev2.h> #include <linux/v4l2-mediabus.h> #include <linux/module.h> #include <media/i2c/mt9v032.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-subdev.h> /* The first four rows are black rows. The active area spans 753x481 pixels. */ #define MT9V032_PIXEL_ARRAY_HEIGHT … #define MT9V032_PIXEL_ARRAY_WIDTH … #define MT9V032_SYSCLK_FREQ_DEF … #define MT9V032_CHIP_VERSION … #define MT9V032_CHIP_ID_REV1 … #define MT9V032_CHIP_ID_REV3 … #define MT9V034_CHIP_ID_REV1 … #define MT9V032_COLUMN_START … #define MT9V032_COLUMN_START_MIN … #define MT9V032_COLUMN_START_DEF … #define MT9V032_COLUMN_START_MAX … #define MT9V032_ROW_START … #define MT9V032_ROW_START_MIN … #define MT9V032_ROW_START_DEF … #define MT9V032_ROW_START_MAX … #define MT9V032_WINDOW_HEIGHT … #define MT9V032_WINDOW_HEIGHT_MIN … #define MT9V032_WINDOW_HEIGHT_DEF … #define MT9V032_WINDOW_HEIGHT_MAX … #define MT9V032_WINDOW_WIDTH … #define MT9V032_WINDOW_WIDTH_MIN … #define MT9V032_WINDOW_WIDTH_DEF … #define MT9V032_WINDOW_WIDTH_MAX … #define MT9V032_HORIZONTAL_BLANKING … #define MT9V032_HORIZONTAL_BLANKING_MIN … #define MT9V034_HORIZONTAL_BLANKING_MIN … #define MT9V032_HORIZONTAL_BLANKING_DEF … #define MT9V032_HORIZONTAL_BLANKING_MAX … #define MT9V032_VERTICAL_BLANKING … #define MT9V032_VERTICAL_BLANKING_MIN … #define MT9V034_VERTICAL_BLANKING_MIN … #define MT9V032_VERTICAL_BLANKING_DEF … #define MT9V032_VERTICAL_BLANKING_MAX … #define MT9V034_VERTICAL_BLANKING_MAX … #define MT9V032_CHIP_CONTROL … #define MT9V032_CHIP_CONTROL_MASTER_MODE … #define MT9V032_CHIP_CONTROL_DOUT_ENABLE … #define MT9V032_CHIP_CONTROL_SEQUENTIAL … #define MT9V032_SHUTTER_WIDTH1 … #define MT9V032_SHUTTER_WIDTH2 … #define MT9V032_SHUTTER_WIDTH_CONTROL … #define MT9V032_TOTAL_SHUTTER_WIDTH … #define MT9V032_TOTAL_SHUTTER_WIDTH_MIN … #define MT9V034_TOTAL_SHUTTER_WIDTH_MIN … #define MT9V032_TOTAL_SHUTTER_WIDTH_DEF … #define MT9V032_TOTAL_SHUTTER_WIDTH_MAX … #define MT9V034_TOTAL_SHUTTER_WIDTH_MAX … #define MT9V032_RESET … #define MT9V032_READ_MODE … #define MT9V032_READ_MODE_ROW_BIN_MASK … #define MT9V032_READ_MODE_ROW_BIN_SHIFT … #define MT9V032_READ_MODE_COLUMN_BIN_MASK … #define MT9V032_READ_MODE_COLUMN_BIN_SHIFT … #define MT9V032_READ_MODE_ROW_FLIP … #define MT9V032_READ_MODE_COLUMN_FLIP … #define MT9V032_READ_MODE_DARK_COLUMNS … #define MT9V032_READ_MODE_DARK_ROWS … #define MT9V032_READ_MODE_RESERVED … #define MT9V032_PIXEL_OPERATION_MODE … #define MT9V034_PIXEL_OPERATION_MODE_HDR … #define MT9V034_PIXEL_OPERATION_MODE_COLOR … #define MT9V032_PIXEL_OPERATION_MODE_COLOR … #define MT9V032_PIXEL_OPERATION_MODE_HDR … #define MT9V032_ANALOG_GAIN … #define MT9V032_ANALOG_GAIN_MIN … #define MT9V032_ANALOG_GAIN_DEF … #define MT9V032_ANALOG_GAIN_MAX … #define MT9V032_MAX_ANALOG_GAIN … #define MT9V032_MAX_ANALOG_GAIN_MAX … #define MT9V032_FRAME_DARK_AVERAGE … #define MT9V032_DARK_AVG_THRESH … #define MT9V032_DARK_AVG_LOW_THRESH_MASK … #define MT9V032_DARK_AVG_LOW_THRESH_SHIFT … #define MT9V032_DARK_AVG_HIGH_THRESH_MASK … #define MT9V032_DARK_AVG_HIGH_THRESH_SHIFT … #define MT9V032_ROW_NOISE_CORR_CONTROL … #define MT9V034_ROW_NOISE_CORR_ENABLE … #define MT9V034_ROW_NOISE_CORR_USE_BLK_AVG … #define MT9V032_ROW_NOISE_CORR_ENABLE … #define MT9V032_ROW_NOISE_CORR_USE_BLK_AVG … #define MT9V032_PIXEL_CLOCK … #define MT9V034_PIXEL_CLOCK … #define MT9V032_PIXEL_CLOCK_INV_LINE … #define MT9V032_PIXEL_CLOCK_INV_FRAME … #define MT9V032_PIXEL_CLOCK_XOR_LINE … #define MT9V032_PIXEL_CLOCK_CONT_LINE … #define MT9V032_PIXEL_CLOCK_INV_PXL_CLK … #define MT9V032_TEST_PATTERN … #define MT9V032_TEST_PATTERN_DATA_MASK … #define MT9V032_TEST_PATTERN_DATA_SHIFT … #define MT9V032_TEST_PATTERN_USE_DATA … #define MT9V032_TEST_PATTERN_GRAY_MASK … #define MT9V032_TEST_PATTERN_GRAY_NONE … #define MT9V032_TEST_PATTERN_GRAY_VERTICAL … #define MT9V032_TEST_PATTERN_GRAY_HORIZONTAL … #define MT9V032_TEST_PATTERN_GRAY_DIAGONAL … #define MT9V032_TEST_PATTERN_ENABLE … #define MT9V032_TEST_PATTERN_FLIP … #define MT9V032_AEGC_DESIRED_BIN … #define MT9V032_AEC_UPDATE_FREQUENCY … #define MT9V032_AEC_LPF … #define MT9V032_AGC_UPDATE_FREQUENCY … #define MT9V032_AGC_LPF … #define MT9V032_AEC_AGC_ENABLE … #define MT9V032_AEC_ENABLE … #define MT9V032_AGC_ENABLE … #define MT9V034_AEC_MAX_SHUTTER_WIDTH … #define MT9V032_AEC_MAX_SHUTTER_WIDTH … #define MT9V032_THERMAL_INFO … enum mt9v032_model { … }; struct mt9v032_model_version { … }; struct mt9v032_model_data { … }; struct mt9v032_model_info { … }; static const struct mt9v032_model_version mt9v032_versions[] = …; struct mt9v032 { … }; static struct mt9v032 *to_mt9v032(struct v4l2_subdev *sd) { … } static int mt9v032_update_aec_agc(struct mt9v032 *mt9v032, u16 which, int enable) { … } static int mt9v032_update_hblank(struct mt9v032 *mt9v032) { … } static int mt9v032_power_on(struct mt9v032 *mt9v032) { … } static void mt9v032_power_off(struct mt9v032 *mt9v032) { … } static int __mt9v032_set_power(struct mt9v032 *mt9v032, bool on) { … } /* ----------------------------------------------------------------------------- * V4L2 subdev video operations */ static struct v4l2_mbus_framefmt * __mt9v032_get_pad_format(struct mt9v032 *mt9v032, struct v4l2_subdev_state *sd_state, unsigned int pad, enum v4l2_subdev_format_whence which) { … } static struct v4l2_rect * __mt9v032_get_pad_crop(struct mt9v032 *mt9v032, struct v4l2_subdev_state *sd_state, unsigned int pad, enum v4l2_subdev_format_whence which) { … } static int mt9v032_s_stream(struct v4l2_subdev *subdev, int enable) { … } static int mt9v032_enum_mbus_code(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { … } static int mt9v032_enum_frame_size(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { … } static int mt9v032_get_format(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static void mt9v032_configure_pixel_rate(struct mt9v032 *mt9v032) { … } static unsigned int mt9v032_calc_ratio(unsigned int input, unsigned int output) { … } static int mt9v032_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { … } static int mt9v032_get_selection(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { … } static int mt9v032_set_selection(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { … } /* ----------------------------------------------------------------------------- * V4L2 subdev control operations */ #define V4L2_CID_TEST_PATTERN_COLOR … /* * Value between 1 and 64 to set the desired bin. This is effectively a measure * of how bright the image is supposed to be. Both AGC and AEC try to reach * this. */ #define V4L2_CID_AEGC_DESIRED_BIN … /* * LPF is the low pass filter capability of the chip. Both AEC and AGC have * this setting. This limits the speed in which AGC/AEC adjust their settings. * Possible values are 0-2. 0 means no LPF. For 1 and 2 this equation is used: * * if |(calculated new exp - current exp)| > (current exp / 4) * next exp = calculated new exp * else * next exp = current exp + ((calculated new exp - current exp) / 2^LPF) */ #define V4L2_CID_AEC_LPF … #define V4L2_CID_AGC_LPF … /* * Value between 0 and 15. This is the number of frames being skipped before * updating the auto exposure/gain. */ #define V4L2_CID_AEC_UPDATE_INTERVAL … #define V4L2_CID_AGC_UPDATE_INTERVAL … /* * Maximum shutter width used for AEC. */ #define V4L2_CID_AEC_MAX_SHUTTER_WIDTH … static int mt9v032_s_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops mt9v032_ctrl_ops = …; static const char * const mt9v032_test_pattern_menu[] = …; static const struct v4l2_ctrl_config mt9v032_test_pattern_color = …; static const struct v4l2_ctrl_config mt9v032_aegc_controls[] = …; static const struct v4l2_ctrl_config mt9v032_aec_max_shutter_width = …; static const struct v4l2_ctrl_config mt9v034_aec_max_shutter_width = …; /* ----------------------------------------------------------------------------- * V4L2 subdev core operations */ static int mt9v032_set_power(struct v4l2_subdev *subdev, int on) { … } /* ----------------------------------------------------------------------------- * V4L2 subdev internal operations */ static int mt9v032_registered(struct v4l2_subdev *subdev) { … } static int mt9v032_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh) { … } static int mt9v032_close(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh) { … } static const struct v4l2_subdev_core_ops mt9v032_subdev_core_ops = …; static const struct v4l2_subdev_video_ops mt9v032_subdev_video_ops = …; static const struct v4l2_subdev_pad_ops mt9v032_subdev_pad_ops = …; static const struct v4l2_subdev_ops mt9v032_subdev_ops = …; static const struct v4l2_subdev_internal_ops mt9v032_subdev_internal_ops = …; static const struct regmap_config mt9v032_regmap_config = …; /* ----------------------------------------------------------------------------- * Driver initialization and probing */ static struct mt9v032_platform_data * mt9v032_get_pdata(struct i2c_client *client) { … } static int mt9v032_probe(struct i2c_client *client) { … } static void mt9v032_remove(struct i2c_client *client) { … } static const struct mt9v032_model_data mt9v032_model_data[] = …; static const struct mt9v032_model_info mt9v032_models[] = …; static const struct i2c_device_id mt9v032_id[] = …; MODULE_DEVICE_TABLE(i2c, mt9v032_id); static const struct of_device_id mt9v032_of_match[] = …; MODULE_DEVICE_TABLE(of, mt9v032_of_match); static struct i2c_driver mt9v032_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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